Current Green Chemistry最新文献

{"title":"Acknowledgements to Reviewers","authors":"","doi":"10.2174/221334611002230621163020","DOIUrl":"https://doi.org/10.2174/221334611002230621163020","url":null,"abstract":"","PeriodicalId":10856,"journal":{"name":"Current Green Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136115850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Meet the Associate Editorial Board Member","authors":"Chao Shen","doi":"10.2174/221334611002230621145542","DOIUrl":"https://doi.org/10.2174/221334611002230621145542","url":null,"abstract":"","PeriodicalId":10856,"journal":{"name":"Current Green Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136117159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanochemical and microwave multistep organic reactions","authors":"D. Margetić","doi":"10.2174/2213346110666230830125317","DOIUrl":"https://doi.org/10.2174/2213346110666230830125317","url":null,"abstract":"\u0000\u0000The development of more sustainable chemical reactions and processes has been the focus of recent research activities. Advances in the field of organic synthesis have led to the emergence of new methodologies and techniques involving non-conventional energy sources. These include the applications of mechanical energy (mechanochemistry) and microwave radiation (MW) methods. This article reviews the advances in multistep organic synthesis of biologically relevant organic molecules using mechanochemistry and microwave techniques. Among them, various heterocyclic molecules (with nitrogen, oxygen, and sulphur atoms), amides, and peptides have been synthesized by multistep mechanochemical or MW reactions. Performing multiple synthetic steps using more sustainable methods shows cumulative advantages over multistep processes under conventional conditions in terms of reduced solvent use, shorter reaction times, better turnovers, and reaction yields. Simplification of protocols by carrying out two or more reaction steps in the same reaction vessel is another advantage of multistep syntheses.\u0000","PeriodicalId":10856,"journal":{"name":"Current Green Chemistry","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44825788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ultrasound-Assisted Catalyst-free Synthesis of α,β-Unsaturated Amino Acid Esters and Unsaturated Amino Ketones","authors":"B. Torok, Guoshu Xie, Nicolas de Moura Ricketti","doi":"10.2174/2213346110666230816095531","DOIUrl":"https://doi.org/10.2174/2213346110666230816095531","url":null,"abstract":"\u0000\u0000Sonication has been introduced as a green and effective activation method for the selective monoamination of β-dicarbonyl compounds. The simple one-pot process resulted in different substituted β-amino-ɑ, β-unsaturated esters and ketones at room temperature with quantitative yields. Aqueous NH4OH was used as a safe and economical nitrogen source for pressurized NH3 gas. The process is considered green, accounting for not using any solvents and catalysts, besides some aqueous NH4OH-involved reactions using nontoxic water. A broad variety of useful synthetic intermediates, β-amino-ɑ, β-unsaturated esters and ketones have been prepared in short reaction time.\u0000\u0000\u0000\u0000Using this developed protocol, we were able to synthesize a series of structurally diverse β-amino-ɑ, β-unsaturated esters and unsaturated amino ketones.\u0000\u0000\u0000\u0000The synthesis of target compounds was achieved in a truly green process with high atom economy and excellent yields in a catalyst-free one-pot system in an aqueous medium using simple, commercially available, inexpensive ammonium hydroxide as the source of the nitrogen. The high atom economy has been accompanied by the formation of a small amount of nontoxic waste, water.\u0000\u0000\u0000\u0000In conclusion, a simple, convenient, and high-yielding catalyst-free environmentally benign method was developed for the synthesis of unsaturated amino acid esters and unsaturated amino ketones.\u0000","PeriodicalId":10856,"journal":{"name":"Current Green Chemistry","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2023-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45780696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Green and Eco-friendly Synthetic Strategies for Quinoxaline Derivatives","authors":"R. Bhatia, Irfan Ali","doi":"10.2174/2213346110666230724123450","DOIUrl":"https://doi.org/10.2174/2213346110666230724123450","url":null,"abstract":"\u0000\u0000Advancement in green synthetic methodologies has brought a revolution in heterocyclic synthesis. Green synthesis has bypassed the classical procedures involving toxic/hazardous solvents or catalysts and improved the current environmental safety standards by many folds. Green chemistry research has continuously made significant contributions to the development of heterocyclic scaffolds both at laboratory and commercial scales. Researchers are continuously developing and exploring the principles of green chemistry for the development of novel therapeutic agents. Quinoxaline lies in the category of versatile heterocyclic motifs, which possesses a wide diversity in its derivatives as well as a broad profile of its therapeutic potential. In the past decades, many new green synthetic protocols have been developed and employed successfully for the synthesis of quinoxaline derivatives. These include the use of reusable nanocatalysts, polymers, various green solvents, tonsils, catalysts, water as a catalyst, microwave irradiation, ultrasonic waves, non-toxic metal catalysts, surfactants, etc. The present review focuses on various green synthetic procedures reported for quinoxalines along with the specializations and applications of the reactions.\u0000","PeriodicalId":10856,"journal":{"name":"Current Green Chemistry","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2023-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42295484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Water-Mediated Synthesis, Antibacterial and Antioxidant Evaluation of New Fused Pyrimido-pyrimidine and Pyrimido-purines Derived From Nucleobases","authors":"M. Dehamchia, Ichrak Bouguessa, Mohamed Aber, Nawal Khier, S. Bayou, Zine Régaïnia","doi":"10.2174/2213346110666230720152024","DOIUrl":"https://doi.org/10.2174/2213346110666230720152024","url":null,"abstract":"\u0000\u0000A simple and eco-friendly synthesis of novel substituted pyrimido[1,6-a]pyrimidine, pyrimido[1,2-g]purine, and pyrimido[2,1-e]purine was accomplished by refluxing of nucleobases (cytosine, adenine or guanine) and dibenzalacetone (DBA) in water using NaOH as a catalyst.\u0000\u0000\u0000\u0000The molecular structures of the resulting products were characterized by infrared spectroscopy (FT-IR), mass spectrometry, and proton (1H) and carbon (13C) nuclear magnetic resonance (NMR).\u0000\u0000\u0000\u0000The antibacterial activity of the newly fused heterocycles was assayed against the Gram-positive bacterium Staphylococcus aureus (ATCC 6538) and Gram-negative Escherichia coli (ATCC 8737) using gentamicin as a standard commercially available antibiotic.\u0000\u0000\u0000\u0000In addition, the antioxidant capacity was screened using the 2,2-diphenyl-2-picrylhydrazyl hydrate (DPPH•) and the 2,2-azinobis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS+•) radicals scavenging assay.\u0000","PeriodicalId":10856,"journal":{"name":"Current Green Chemistry","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42885989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Going Green for Blue - An Indigo Approach","authors":"Srivani Thadepalli, S. Amsamani","doi":"10.2174/2213346110666230605120649","DOIUrl":"https://doi.org/10.2174/2213346110666230605120649","url":null,"abstract":"\u0000\u0000Dominating use of chemical processes for reducing indigo at several small-scale production houses formed the ground for initiating this study. Conventional textile processing hubs still use sodium hydrosulphite as a reducing agent irrespective of the source of indigo, whether natural or synthetic ignoring the unfavourable consequences of their disposal and elimination from effluent\u0000\u0000\u0000\u0000The paper addresses the critical environmental issues related to the conventional reduction of indigo and studies already undertaken. It examines the indigo dyeing process of cotton using natural, chemical and eco-friendly reducing agents in combination with calcium hydroxide for a comparative study. Identification of natural indigo through High-Performance Liquid Chromatography was undertaken for further experimentation. Under specific parameters, the study examined the effect of Thiourea dioxide and natural reducing agents in indigo dyeing replacing Sodium hydrosulphite. The difference in weight, strength, and colour parameters such as K/S (HUNTERLAB), CIELab values and colourfastness are measured. The experimental results showed weight gain in all fabrics after indigo dyeing. There is a decrease in weft strength only in tamarind, iron, jaggery and dextrose vats. Iron vat showed a higher colour yield out of all reducing agents due to forming metal complexes with the cotton fabric, which influenced colour depth and highest relative colour strength % (114.11) and C (8.48).\u0000\u0000\u0000\u0000Thiourea dioxide showed the next highest relative colour strength % (96.59) and lowest H values (8.54) concerning the values of the hydro process. Structural changes of fiber were studied by using SEM (Scanning Electron Microscope) after using different reducing agents, which revealed superior surface topography of samples dyed using thiox. The colour difference showed no significant effect on the colourfastness of alternative reducing agents\u0000\u0000\u0000\u0000Thiox can be a perfect substitution for hydro in indigo dyeing as it was found practical and feasible for implementation even by small-scale units in India.\u0000","PeriodicalId":10856,"journal":{"name":"Current Green Chemistry","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2023-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44717082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of Nonconventional Extraction Methods of Resveratrol from\u0000Various Plant Sources- A Brief Review","authors":"M. Hoda, Sk Saidul, Susmita Das","doi":"10.2174/2213346110666230517114652","DOIUrl":"https://doi.org/10.2174/2213346110666230517114652","url":null,"abstract":"\u0000\u0000Resveratrol is a stilbene class of phenolic phytochemical that has a wide range of utilization in\u0000several industries, including pharmaceutical, food and cosmetic industries. It is available in several plants,\u0000including grapes, berries, and peanuts. Major focus of research regarding resveratrol has been its therapeutic\u0000potential against major diseases, including cardiovascular, inflammatory, cancer, microbial and\u0000age-related diseases. However, its extraction methods have not been of much discussion. In this review,\u0000nonconventional methods, including supercritical fluid extraction, subcritical water extraction, microwave-\u0000assisted extraction, ultrasound assisted extraction, and high hydrostatic pressure extraction have\u0000been discussed in contrast to widely implemented conventional extraction methods. Nonconventional\u0000methods are considerably advanced over conventional methods. In this review, the efficiency of various\u0000nonconventional methods via optimization of their extraction parameters, such as the effects of modifiers,\u0000solvents, pressure, temperature, and extraction time, have been evaluated. Improvised extraction methods\u0000may result in cost-effective isolation of resveratrol.\u0000","PeriodicalId":10856,"journal":{"name":"Current Green Chemistry","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2023-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43579766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bromoaldehyde as a Useful Starting Materials for the Synthesis of Various Hetero Cyclic and Carbocylic Molecules by Pd-catalyzed Reaction","authors":"R. Jana, Mitali Dewan, D. Kundu","doi":"10.2174/2213346110666230508154324","DOIUrl":"https://doi.org/10.2174/2213346110666230508154324","url":null,"abstract":"\u0000\u0000This short review presents an overview of the effectiveness of β-bromoaldehyde as synthetic tool in organic chemistry. Few groups have reported significant contributions on β-bromoaldehyde. The aim of our short review was to give an overview of the latest advances in the chemistry of β-bromoaldehyde from their preparation to their transformations and applications in organic synthesis of some heterocyclic and carbocyclic molecules by using palladium-catalyzed reaction.\u0000","PeriodicalId":10856,"journal":{"name":"Current Green Chemistry","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2023-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46985318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Fate of Fungi in the Bioremediation of Pharmaceutical Drug Wastes","authors":"P. Chaurasia, Sunita Singh, Sunita Kumari, S. L. Bharati","doi":"10.2174/2213346110666230416152330","DOIUrl":"https://doi.org/10.2174/2213346110666230416152330","url":null,"abstract":"\u0000\u0000Pharmaceutical drug wastes are pharmaceutical molecules that may be released into the environment through various ways, like from pharmaceutical industries, hospitals, or health care channels. Such molecules may be poisonous to the aquatic environment, aquatic lives as well as human beings. In the green approaches toward their treatment, fungi and their extracellular or intracellular enzymes may be significantly useful in the bioremediation of pharmaceutical pollutants. This editorial presents a brief overview of the fungal-assisted bioremediation of pharmaceutical drugs present as wastes and the fate of the fungal applicability towards such bioremediation processes.\u0000","PeriodicalId":10856,"journal":{"name":"Current Green Chemistry","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2023-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49174651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}